LT1076HVCT Linear Technology, LT1076HVCT Datasheet - Page 4

• Manufacturer Part Number: LT1076HVCT
• Description: IC SWTCHNG REG STP-DWN 2A TO-220
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Step-Up (Boost), Inverting, Flybackr

Specifications of LT1076HVCT

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 2.5 ~ 50 V
• Current - Output: 2A
• Frequency - Switching: 100kHz
• Voltage - Input: 8 ~ 64 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LT1074/LT1076
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: To calculate maximum switch “on” voltage at currents between
low and high conditions, a linear interpolation may be used.
Note 3: A feedback pin voltage (V
clamp level and the switch duty cycle to zero. This approximates the zero
load condition where duty cycle approaches zero.
Note 4: Total voltage from V
up for proper regulation.
BLOCK DIAGRA
ELECTRICAL CHARACTERISTICS
4
10 A
INPUT SUPPLY
µ
SHUTDOWN*
2.21V
IN
pin to ground pin must be ≥ 8V after start-
2.35V
*AVAILABLE ON PACKAGES WITH PIN
0.3V
COUNTS GREATER THAN 5.
FB
W
) of 2.5V forces the V
FB
+
SHUTDOWN
–
+
–
µ
-POWER
+
–
ERROR
AMP
A1
SHUTDOWN
CURRENT
LIMIT
V
C
REGULATOR
AND BIAS
C
X
I
pin to its low
6V
LIM
MULTIPLIER
24V (EQUIVALENT)
*
ANALOG
FREQ SHIFT
SYNC
V
XY
Z
Z
Y
IN
OSCILLATOR
100kHz
6V TO ALL
CIRCUITRY
320 A
3V(p-p)
µ
+
–
C1
Note 5: Switch frequency is internally scaled down when the feedback pin
voltage is less than 1.3V to avoid extremely short switch on times. During
testing, V
Note 6: I
Note 7: Switch to input voltage limitation must also be observed.
Note 8: V
Note 9: Does not include switch leakage.
4.5V
COMPARATOR
PULSE WIDTH
10k
S
LIM
FB
MAX
LATCH
R/S
R
R
is adjusted to give a minimum switch on time of 1µs.
≈
= 40V for the LT1074/76 and 60V for the LT1074HV/76HV.
CURRENT
R
Q
LT1076
COMP
LIMIT
LIM
100
OUTPUT (V
2k
Ω
SWITCH
– 1k
C2
0.1
+
–
SW
(LT1074), I
G1
Ω
)
250
500
Ω
LIM
Ω
400
Ω
≈
R
15
LIM
LT1074
5.5k
Ω
SWITCH
OUTPUT
(V
– 1k
SW
LT1074 • BD01
0.04
)
(LT1076).
sn1074 1074fds